SIEKUNOVA, I. Spiritual mission of high school education. Journal of Education, Technology and Computer Science, ISSN 2719-6550, e-ISSN 2719-7417, [S. l.], v. 7, n. 1, p. 141–145, 2013. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6822. Acesso em: 23 sie. 2026.